#include "stm32f10x.h"                  // Device header
int16_t CountSensor_Count;
void CountSensor_Init(void)
	{
		RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
		RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
		GPIO_InitTypeDef GPIO_InitStructure;
		GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
		GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_0;
		GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
		GPIO_Init(GPIOB,&GPIO_InitStructure);//配置GPIO
		
		GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource0);
		GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource1);//配置AFIO
		
		EXTI_InitTypeDef EXTI_InitStructure;
		EXTI_InitStructure.EXTI_Line = EXTI_Line1 | EXTI_Line0;
		EXTI_InitStructure.EXTI_LineCmd = ENABLE;
		EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
		EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
		EXTI_Init(&EXTI_InitStructure);//配置EXTI
		
		NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
		NVIC_InitTypeDef NVIC_InitStructure;
		NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
		NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
		NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
		NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
		NVIC_Init(&NVIC_InitStructure);
		
		NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;
		NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
		NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
		NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
		NVIC_Init(&NVIC_InitStructure);//配置NVIC
	}
	
int16_t CountSensor_Get(void)
{
	int16_t temp;
	temp = CountSensor_Count;
	CountSensor_Count = 0;
	return temp;
}

void EXTI0_IRQHandler(void)
{
		if(EXTI_GetITStatus(EXTI_Line0)==SET)
			{
				if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) == 0)
					{
						CountSensor_Count --;
					}
				
				EXTI_ClearITPendingBit(EXTI_Line0);
			}
			
}
void EXTI1_IRQHandler(void)
{
		if(EXTI_GetITStatus(EXTI_Line1)==SET)
			{
				
				if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_0) == 0)
					{
						CountSensor_Count ++;
					}
				
				EXTI_ClearITPendingBit(EXTI_Line1);
			}
			
}
	